<!DOCTYPE html>
<html lang="en"  xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <meta charset="UTF-8">
    <title>idError</title>
    <style>
        .box{
            text-align: center;
            width: 500px;
            margin: 0 auto;
            border: 2px solid cadetblue;
        }
    </style>
</head>

<body background="../static/2.jpg">
<form action="" method="" class="box">
<h3>错误啦!</h3>
<a href="index.html">返回</a>
</form>

</body>
</html>